20105130171

素因数分解:

$3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1536737}}^1$

素因数の和:1536843

約数の個数: 24

約数和(自身を含む): 31533863760

約数和(自身を除く): 11428733589

約数列:

[1, 3, 7, 21, 49, 89, 147, 267, 623, 1869, 4361, 13083, 1536737, 4610211, 10757159, 32271477, 75300113, 136769593, 225900339, 410308779, 957387151, 2872161453, 6701710057, 20105130171]

約数ペア:

[(1, 20105130171), (3, 6701710057), (7, 2872161453), (21, 957387151), (49, 410308779), (89, 225900339), (147, 136769593), (267, 75300113), (623, 32271477), (1869, 10757159), (4361, 4610211), (13083, 1536737)]